Want to get your 3D prints to the next level? Check out our Heat Set Inserts and Tools at cnckitchen.store (Free shipping worldwide starting at €100). *QUESTION* Is recycling failed 3D prints a waste of time and money?

@bootstrappyworkshop8367

4 ай бұрын

Thank you for spotlighting this machine. I wouldn't have discovered it myself. I'm going to be doing some plastic shredding and recycling for my own channel starting with HDPE into small barstock and then doing same for failed prints as I have a bunch in PLA, PETG, and nylon. This opens up some options.

@SystemsPlanet

4 ай бұрын

Add a large magnet to the outside of the hopper to catch metal fragments.

@KainYusanagi

4 ай бұрын

If you sorted your filament waste according to material and color prior, it would get rid of the banding, too. Good job recycling filament! One of my biggest pet peeves with 3D printing has always been all the waste product discarded instead of reused.

@loeffel4144

4 ай бұрын

I would say it is the start of finally using recycled filament. Why just the start? The machine seems to work fine and by changing it during the development process it will for sure even get better, especially with the filter and perhaps an additional diameter checker. But as so often that's just the half of it. For a hobbyist it will be hard to nearly impossible to shred the existing fails into pieces that can be used with this machine. Existing buy able machines are far too expensive and everything else won't do the job properly without an enorm amount of time. So in the first part of your video you already answered the question, if this is a machine for the hobby of 3D printing. When it comes to the question if it is a waste of time and money to do it, I would say for sure it isn't, as long as you don't need to put in too much time and money in achieving this goal. When you sort your waste by color and type, you can make relative clean new material. If you don't sort by color, only by type, you still can make a viable and usable filament, that is good enough for prototypes or cases and other prints, where the ecstatic doesn't matter. This is a good thing as long as the money and energy you need to put into it isn't too high. When it comes to the money for sure you can say the hobby is still expensive enough and you don't want to make it even more expensive. When it comes to the energy, you still want to help your environment with it and if the use of energy is too high, that goal is endangered. All in all I would say it is a good start, but still not a solution for most of the hobbyists out there. For a few ones, where money doesn't is such a big problem and for real enthusiasts this is for sure a solution. For everyone else it is unfortunately not much more than a look what the future might bring to us.

@nukedathlonman

4 ай бұрын

I don't think so, and in fact may save a few purchases of filament and def means less micro plastics going into the landfill/environment. Might end up costing a little more given power consumed, etc, but I think it's worth the trade off.

I run a makerspace at a local university. I have been trying to work out a grant for the other recycler you showed. This one here is within our budget! Thanks Stefan!

@kbee225

4 ай бұрын

I hate the markerspace in my university. They charge you $0.20 per gram of PLA. (That's the cheapest option). I end up spending $15 for a part that often costs me less than a quarter dollars in material. That aside, their machines are not fine tuned and I've gotten better or the same finish with a stock ender 3 V2. Also, they don't let me choose the print orientation and would often refuse to add supports in their slicer. They'd want me to add supports in CAD which can be a nightmare. I'm glad I don't go to them anymore.

@jblack3761

4 ай бұрын

@@kbee225 My university had a similar situation, overpriced, poor quality, long wait time. So a couple of my friends and I started printing parts for people for about half the cost of the university doing it (still a lot of profit) and ended up doing quite a bit of printing for individuals and even various senior design teams.

@fummy33hotmail

4 ай бұрын

​@kbee225 at that point, why even bother HAVING the space? We bought thousands of dollars worth of equipment. To use? No, to collect dust because we're too stupid to know how to properly, so you must be too

@geekdomo

4 ай бұрын

@@kbee225 We just bought 3 Bambu Labs X1 Carbons with AMS. That kinda blew our budget for any recyling program. I honestly didnt know people charged for makerspace materials. We only ask the students to bring in their own filament if its a big project.

@greatapex2280

4 ай бұрын

​@@kbee225that's too bad! Sorry to hear some universities still see makerspaces as a "service-facility". I run my university makerspace as a means to teach prototyping: users get advice and support, but do all the work themselves. Luckily, the faculty agrees, so none of that silly "15 dollar for a print" nonsense.

I’d love to see an experiment showing how repeated recycling affects strength and printability.

@CNCKitchen

4 ай бұрын

I'll definitely dive into that!

@tyeth

4 ай бұрын

While you're at it @CNCKitchen , can you try to re-join long chain polymers from old water-damaged filament (where the chains have been broken and interspersed with water/o/h molecules). It seems like under the right conditions that would be reversable, but also surely happens to very old filament that will be recycled. Also please use an equivalent to the UK climate (generally higher humidity with lower temperatures, i.e. summer = muggy if still, winter = moldy)

@NoMoreBsPlease

4 ай бұрын

​@@CNCKitchen You should do a video on how much the ratio of fresh and recycled plastic affects strength. So many people think you can recycle plastic, just like aluminum or steel.

@DreamsVoid

4 ай бұрын

BrothersMake recently did a video on multiple times recycled plastics. They found pretty much nothing changes

@zombieregime

4 ай бұрын

Well......in the big boy molding, and fabrication world we would cast the 3d printed part to make a tools that we would use to make molds containing many of the thing we wanted to make many of, then cast 5, 10, 20, 50, etc at a time using well documented, repeatable, reliable, known strength, etc final materials to get our finished parts. The bonus of which is if you spend the time FINISHING the RAPIDLY PROTOTYPED piece the first time, like people should be doing instead of chasing unrealistic smoothness and fiddly settings that change with the phase of the moon and are never the same between them, youll end up with molds of perfectly smooth and clean parts that you just have to whip up some AB urethane epoxy, cast it, and wait for it to harden. I really dont know why the maker scene hasnt clued on to this yet.......

Things to try: - Print and recycle the same plastic a few times to see if it degrades - Make filament from non 3d printed sources - find a way to upgrade it or improvements for it after you use it for a bit.

@user-qn6kb7gr1d

2 ай бұрын

1. It does. Polymers are getting shorter and shorter each time on a molecular level. 2. You can make PET filament from plastic bottles, and it's relatively easy and simple as it doesn't require a real plastic shredder. 3. One way to improve is simply mix in some additives to have a custom filament of your own

@rodiculous9464

Ай бұрын

​@@user-qn6kb7gr1dgood to know, I don't really print PET very often but it would be cool to recycle my own bottle since plastic recycling is a scam in most places. Also @sanders you can print from weed whacker line just fyi

@rodiculous9464

Ай бұрын

You can print with weed trimmer filament too fyi

I love how you have the ability to form new mesh filters as required. The original manufacturer doesn't rip you for replacement parts.

@kamel6915

2 ай бұрын

As a manufacturer of bike suspension forks I know how the responsibility for spare part supply feels. If you are a one person company and the creative person you don't want to be in charge of that. My forks are designed not to have any parts that wear and if special features need wearing stuff I tell my customers how to get those parts without bothering me.

This is a HUGE step in the right direction. I've been so confused as to why there aren't any solutions to shred and re-spool 3D printing waste that are consumer grade and priced. I'd love to buy a system to recycle my PETG and PLA waste, but it's way too expensive right now.

@oyuyuy

4 ай бұрын

It'd have to cost at most $100 in order to make any sense in my opinion, including the shredder - and even then I'd question what the goal is. It doesn't really make sense neither economically nor environmentally

@kbee225

4 ай бұрын

Yeah, in a hobby space and even in commercial manufacturing 3D printing is but a fraction. And often with plastic, extruding them over and over causes thermal degradation and you'd need to add additives to keep them from becoming worse. It might just be a better idea to use PLA more and create accessible industrial composters. And maybe something like plasma gassification for petg and some.other products.

@Obot1121

4 ай бұрын

I use a ninja blender Ninja BL455, powerful enough, but you need to let the dust settle.

@kbee225

4 ай бұрын

@@Obot1121 be wary of the microplastics you're being exposed to. Many polymers in a microscopic scale are endocrine disruptors.

@formes2388

4 ай бұрын

@@oyuyuy Um... what? Lets say your spool costs you 20$, you waste about 20% between failed prints and support material. Every 5 spools you go through, this saves you the cost of a spool - and whiel you won't want to continue recycling pure recycled PLA etc, you can easily funnel this into becoming internal fill material etc with very little in the way of lost strength etc. So you go collect a pile of stuff, recycle it down, turn it into supports, then use it as filler material - or just use it for solid blocks, bases, and such that don't need to be as sturdy. I'd wager you can pay the cost back in under a year if you are big into printing. And from an environmental stand point: In winter you use energy to heat your home anyways, so that's minor. But overall you are shipping less spools of plastic, you are sending less direct to landfill, and you are recovering the material for secondary use. As long as you were already going to print the damn item in the first place, you aren't generating any additional waste. And considering spools of plastic can be attained at like 20$, it's not like the cost of these spools is prohibitive - it's more the cost of the printer that stops people from getting into the hobby, and even that is pretty damn achievable by doing something like bottle picking for a week if you have literally no extra money... which turns out you can even turn pop bottles into filament so, hey look: Secondary use. If you on the other hand go through a spool or two a year, ok: This won't really make sense for you. But someone like me: It absolutely does.

TeachingTech just released a filament shredder/chopper, which would be really useful for you to re-pelletize some first stage filament! That should give you uniform pellets that work much better for your filament extruder.

@CNCKitchen

4 ай бұрын

On my list! I already tried it out a little in my last video.

@KORUPTable

4 ай бұрын

@@Splarkszter Simp

@rascallhunter

4 ай бұрын

⁠@@SplarkszterWu’s contribution to that video was the insert installer that was used, not the shredder design.

@Flying--T

4 ай бұрын

​@@Splarkszter No, its not. Did you even watch the video?

@exmirt6232

4 ай бұрын

@@Splarkszter No, they are separate topics. Please watch the video before referencing it.

The amount of detail they put while keeping it low price is honestly impressive. From a mechanical intermittent reversing winder to the mixer, angle measurement in a clever way, wow! Im amazed

I’m super impressed with this kit. I’m an engineer who used to work in bulk plastic production, so many features of a professional small scale plastic extruded are present in this inexpensive kit

@nutritious3250

4 ай бұрын

do you know how small the pieces of shredded parts need to be?

@williamsnapp2615

4 ай бұрын

@@nutritious3250I have no experience doing this with 3D printed parts, the extruders I used occasionally ran small bits of plastic, but usually ran the chemical powders used to makeup different blends of plastic. They controlled particle size based on different plastics due to it changing the nucleation time, which affected some characteristics of the plastic(I’m not a chemical engineer, so I’m not sure what makes this happen). Generally when we ran pre-extruded plastic we did about 1-2mm diameter pieces, but these machines were several stories tall and much different than what is shown here

Regarding Teflon-tape temperature (6:25), some Teflon tapes are rated for 260C/500F while others are 288C/550F. So you can bump the temperature to ~280C if you use the right tape; it's basically the same price too!

@daliasprints9798

4 ай бұрын

That's great news, because you need something like 265-280 for PET, which is the most desirable material to use with such a machine. But getting it to do well with PET probably requires tweaking the post extrusion process for rapid cooling...

@SerialChillerBH

4 ай бұрын

@@daliasprints9798doesnt PET crystalizes and be basically ineffective when heated?

@daliasprints9798

4 ай бұрын

@@SerialChillerBH PET only crystallizes if you're too slow cooling it. Whether that's a good or bad thing depends on what you want. It has bonkers high thermal resistance if you crystallize it, but it's more rigid and therefore brittle too (still way stronger than PLA though). When filament manufacturers talk about crystallization as a bad thing, they mean it's a difficulty for them.manufacturing filament, not for you printing.

@FryedWater

4 ай бұрын

Wrong, most teflon's advertise melting temp rather than a temp where you'll get sick due to the fumes. On any 3d printer with a PTFE hotend I always recommend 230c as the max since thats the temp fumes start to get really bad.

@daliasprints9798

4 ай бұрын

@@FryedWater Yes, that sounded sus. Guess you just have to do without the tape.

I think a big reason why I'm excited about this project is that I feel like a lot of these parts can be sourced cheap or can be sourced from old machines. Like if you had an old ender 3 floating around, you probably already have a lot of stuff for this project. This project seems like the best shot a determined maker has at making a recycling machine cheaply..

I came cuz Angus told us in his annual predictions for the next year video to check this out. Was not disappointed. This thing really is amazing. Maybe not something for us hobbyists but I could see the average Etsy print farmer who has consistent business paying for one in about a year or two and then even saving money not long after.

This is marvelous. I've read a lot of comments here.I think that everyone who makes the choice of making plastic products and thus in our case contributes to plastic waste by fail prints, also has the responsibility not to contribute in global waist. Doesn't matter if you are a big company or a hobbyist. We live in a throw-away society where less and less people take responsibility for their own actions. A hobby always costs money. I've printed a few architectural 3D models last year. To get 1 model right, it sometimes cost me 2 models to have the right setup. I saved all of the fail prints to recycling them one day. I couldn't imagine to just throw it into the garbage bin. This machine seems like a good and for the hobby affordable choice.

@ziggy_shpakovsky

2 ай бұрын

taking responsibility - it's important. for shure. but we must remember that recycling process is not end in itself. we must be shure that recycling process realy help for nature more than harm nature. we must be shure that model droped into garbage is more harmfull for nature than harmfull from making manufacturing all mechanism necessary (shreder, dryer, extruder) and energy for its working. energy not came from air... for energy nature paid in other place before. will this energy waste with helpfull? I don't appeal to droping failed models into garbage. Industrial recycling makes sense. But I asking: can home recyclyng be such effectiv? can this provide the same effecitncy as industrial recyclyng? or its just for fun. for salfe-satisfaction. for self-deception. and, in the end, for greater consumerism and enrichment of those who produce and sell these machines. we need to see a techno-economic comparison. and than we will can make findings

@elongated_musket6353

2 ай бұрын

@@ziggy_shpakovsky Very interesting take. I agree on alot of your points, but i feel that in order to make recycling 3d prints economically viable and efficient at home, more development and experimentation is required before they become something useable and i believe it is still worth pursuing. For example, you save cost and energy from sending and shipping your prints to the industrial plant to get it recycled, or overseas where companies turn your prints into new recycled filament. There are so much more smaller factors that go into the process that all add up to cost and energy expenditure and by doing it at home, you eliminate most of them. But currently, it is too expensive. Cost of printers are already a primary barrier to people who want to get into the hobby, and with 650 euros you could buy multiple printers and spools (not even including a shredder). Unless you are a diehard hobbyist, educator at a school or an engineer doing mass prototyping, you won't save any money. But with how capitalism works, and if more people are interested with recycling old prints, then companies could see an incentive to produce and sell cheaper, energy efficient, all-in-one filament recycling kits targeted towards the average person, rather than $6000 extruders for businesses.

@ziggy_shpakovsky

2 ай бұрын

@@elongated_musket6353 in turn, I agree with much of what you said. in any case I'm not ageinst the recycling. I am just for a sober look at the issue. without empty exaltation. any serious conversation on this topic must be supported by calculations. calculations that include all the little things and circumstances that you mentioned (as well as the harmful fumes that the author mentioned in the video).

If coupled with a Hall filament width sensor (see link in klipper documentation) you could use a feedback on the filament diameter and both avoid the tricky sensor at the bottom and also improve a lot the accuracy. In fact, a video about filament dimeter compensation during printing would be interesting.

@danielpolders4154

4 ай бұрын

Sounds like a collab with Thomas Sanladerer is in order!

This looks awesome. Being open source I'm sure someone smart will figure out how to add a feedback loop. Very useful for recycling old prints but also a cost effective option for making filament from pellets which are much cheaper. Thanks for sharing this useful information!

To be honest the best way I see this working is in groups of makers such as myself and a friend rather than me purchasing one for me alone

Stefan, thank you for a great video! I've had my eye on this for some time and will now get budgeting to purchase one. I'd honestly love to see you use your ingenuity and mechanical skills in addressing the issues with the Artme you identified. I've no doubt you could make this DIY solution even better!

This is exciting. Relatively inexpensive. Seems to work. Your past experience with prep (shred and dry) definitely makes a huge difference. For prototyping / engineering iterations - this seems to be a solid way to go.

I could see this as a great option for local 3D printing groups. If ten people got together to purchase one it could be really beneficial.

Zero waste and recycling is on top of my list about 3D printing. To se your waste turning in printed product is very satisfying. 👍

You can adapt a dial indicator before the fan and run some test with different levels of air flow. There are some models with usb, they transfer a log of measures directly to your pc. Great video !

Hey Stefan, just wanted to mention: Thomas Sanladerer designed/built a filament dimension measuring device about a year ago. As far as I recall, he archieved quite a good measuring precision. This would make a nice addition for closing the loop further on filament dimension.

@DoubsGaming

4 ай бұрын

I thought the same exsact thing, with his sensor and this. Together and a bit more cost cutting I bet it could really be a cost effective method. Also super great for the planet.

Not to be used by 99% of people. For example, who has such a good shredder at home? And who wants to invest so much time to get a few rolls of recycled filament? I think for most people it doesn't make sense and it's easier and cheaper to just buy new filament. Nevertheless, I think the idea is basically a good one.

I'm sure all of your prep work really counts, but wow I'm impressed how well the machine works! Awesome results.

This was informative. I don't need it to the level of reusing for the printer, but to be able to get it back into a string format to chop up for other projects (like mold baking) is really helpful.

Beautiful photography in this review! Outstanding quality of the resulting filament, and thank you for outlining all the steps you took to prepare!

@CNCKitchen

4 ай бұрын

My pleasure!

Imagine paying 650$ and not getting gummy bears.

@CNCKitchen

4 ай бұрын

Dude, I almost cried and this is a German kit as well!

This is a really awesome product. I'm really excited to how this changes as the project continues to grow.

I can see a lot of thought and care went into that kit.

Most promising filament recycling option for consumers. Also, that blue that you got out of the first batch was so NICE looking.

@AlbertoMartinez765

4 ай бұрын

Not really you need an entire other machine system for it to even work..still in the Only for a Company Business University level for most people.

@rcarter

4 ай бұрын

@@AlbertoMartinez765negative Nelly, I don’t care about your opinion. Go be a grouch elsewhere. I said most promising, not “this is the one for consumer”. Kick rocks.

@TheAechBomb

4 ай бұрын

​@@AlbertoMartinez765you just need to shred and dry the filament, which you can do with second-hand blenders and toaster ovens

This is an impressive solution. functionality for the price is incredible.

To correct the hot filament falling off the roller, you can just print or purchase an inverted double cone shaped roller (like the ones where a cross section is two arrows pointing at each other) and the filament shouldn't fall off anymore. Might have to play around with the angle to make sure it doesn't bind or alter the shape of the filament. Might be best to just create one where it curves with the same radius as the filament so it can't physically deform the filament at all actually.

Thanks so much for posting this as I'm looking at making one myself. Great timing 👍

@CNCKitchen

4 ай бұрын

Glad I could help!

This is great!!! I like the direction this is going. I have been wondering about a solution for failed prints and such. Glad to see someone is creating said solution.

It is not only the low prise, witch is budget friendly. I think it is a great tool because with a lot of fun during assembling, learing how to make filament, take care for the environment and if you use the Artme3D very often --> saving money. Thanks for the review.

"only 600 bucks"...

@000Heramy000

8 күн бұрын

Only 600 bucks, a shredding machine, a drying oven...

That looks a fantastic piece of kit for heavy printers and up. I could see David getting overwhelmed it purchases in the near future. On the melt tube insulation, kaowool or even a carvable section of firebrick would be a nice alternative. In place of a teflon tape, while I've never tried it, a good quality Kapton tape has a higher service temperature and should seal relatively well. I would also look into a dedicated v-shaped pulley on the gravity end section, maybe a delrin material that's naturally 'slippery' that can also act as an impromptu sizing die of sorts.

The part about this the absolutely amazes me is this is the first iteration that we are seeing. That means give it a year or two and this thing's going to be smooth. Especially with it being open source so people can mix and match and find a better ways. It'll be hilarious to see an actual full recycling system for probably about $1,000 in the next couple years. And if we get good enough open source ones then we can start getting professionally created ones. It is so cool just to watch the changes that happen 3D printing.

Wow, thank you for being an early adopter. That gives the product credibility and fast-forwards how people will think about plastic waste in the future. I hope more people start offering that service, but I can see the complexity of that business model. You will need enough machines and customers to be able to produce at least 2 spools per hour if you want to sell it below the price of a new one and have a decent salary.

Compared to other options this is ridiculously affordable. Small/medium print farms and maker spaces could likely benefit from it.

I worked in a plastic recycling facility for 8 years. We did profile extrusion as well as compounding pellets. A water tank to cool the fillament after leaving the barrel and die would allow for you to drag the mix from the extruder at higher speed and keep tension on it as well instead of using gravity. This is if the setup can melt the plastic faster and not back up the barrel.

As a budget minded person, who just bought their first 3D printer, I am very excited to see that filament recycling technology is continuing to move along.

OK that is awesome! Thank You for sharing Stefan!

Nice vid! Really good explained. One remark: You should include the needed Watt hours for the whole process. So include the shredder, drying oven, etc..

@AdrianLopez-sb7eo

2 ай бұрын

Also include the initial purchase cost of the grinder and drying oven. You can get a dehydrator oven for something like $150, but I'm betting that grinder is pretty expensive. I'd like to be able to recycle my prototypes and failed prints because I hate plastic waste, but I'm thinking it's still too much money.

Every one of these filament recycling videos reminds me that I don't want to recycle my own filament

That filter forming was really something else!!! :o Amazing what creativity 3D printing enables in people.

Teaching them elements at that young of an age in that way is an amazing idea

It's only $600, but also needs a vacuum chamber, professional grade shredder, drying chamber, and a few other odds and ends. I'm hopeful the more options will be available in the future.

@zweiRGBist

3 ай бұрын

You could try the FIXstruder mini

Considering that besides the feed tube, this thing is basically a 3d printer, I can see these reaching the insane low prices we are seeing in printers now. Huge step in the right direction. Its probably still too expensive for the average home user, but I could see power users or people who sell prints getting one of these. My only concern is how much other hardware you need to make this work. If you need to go spend another 400+ on a vacuum chamber and shredder, that is a lot less viable. I hope the industry can take note that people want something like this, and we eventually get an all in one solution that can make recycling at home viable. I will be saving and sorting all my waste for when that day comes.

@lawrencenenninger1607

4 ай бұрын

I have three tubs of waste I am keeping until I find a good use for it. This, although looks like a fun project, will not be it. I can buy a LOT of filament for what the cost of all the necessary equipment would be. A LOT. Plus, i do not have that amount of funds to throw at a project. What a wonderful machine you built tho!!

Hi Stefan! Love your channel! As far as recycle material goes, the main problem is the low volumetric weight. If pellets have 500-650 kg/m3, regrind material is 300-400 kg/m3 only. As extruder is practically a volumetric pump, you get around 30% less material pushed out by the extruder. This is why one of the reasons that on the "real world" regrind material is used up to 30-40% of the total mixture in normal machine. There are special extruder for 100% recycle but they will be normally as twin screw in order to be able to push out more volume.

This is incredible!! I've always loved the idea of recycling prints

I’ve been begging Joseph Prusa to design this, big missed opportunity for them

Gotta love the prices coming down!

@ChaosTherum

4 ай бұрын

Once we can get a filament extruder in around the $200 range it's definitely gonna be worth it.

To be honest this has seemed to be the most successful filament rycle video and its amazing that its from the DIY solution

I was kind of loosing hope on being sustainable with 3d printing. So I'm so happy about this.

I'm really pleased to see this sort of thing exists! I've often watched 3D printers on KZread and wondered about the environmental impact of all that plastic. It's good to know that it can and is recycled to some extent.

So, once you factor in _ALL_ of the components used, all the 'spare' printer parts, the oven, the vacuum chamber, the shredder, et cetera, what approximate price, fully inclusive, would one be looking at? 🤔

@mrrooter601

4 ай бұрын

Yeah... Id love to see this exact same process done for a little as possible. No vacuum chamber, cheapest shredder. Just a food dehydrator, as most people who 3d print should have one.

@t_c5266

4 ай бұрын

Biggest cost looks like that shredder. I wouldn't guess under a few thousand

@kakwa

4 ай бұрын

Some variant of "too much". Plus the process still looks really finicky. It's interesting, and possibly a fun project if you like 3d printing for itself. But as an individual user, if you simply see 3d printing as a tool, it's probably not worth the effort and money to be honest. In more collective settings (farm, fablabs, etc), it might be more relevant however.

How far that little candle throws its beams! So shines a good deed in a naughty world.

I send my failed prints to a company named Recycling Fabrik. I also buy recycled filament from them and i am very happy. I think this is a good solution for most people that print at home. At my university the 3D-Printing lab has the vision to recycle their scraps themselve but I think they will buy the more professional sulution.

It'd be interesting to see extruding from pellets as they can be more cost effective than normal filament. That'd be a great way to pay it off if you don't need to order pre-produced spools as often

@troncooo409

4 ай бұрын

This and knowing how to color. This would open up a variety of other colors

@MrAgreeandDisagree

4 ай бұрын

What's the difference per kg of filament vs pellets?

wait ... the power supply is left out for "legal reasons" ? wtf kinda legal reasons would stop THAT?

Thanks for sharing and taking the time to set the Artme3D up, was wondering how it works. Will look into it as a future side hustle project. Tschüss

Been saving my failed prints and such waiting to be able to afford something exactly like this, thank you

I love seeing recycled 3d print videos but could we get another recycled plastic bottle vid, maybe with this same filament extruder? Keep up the good work! :D

@CNCKitchen

4 ай бұрын

Extruding PET is unfortunately really tricky and messy why I so far tried to stay away from it.

This machine looks promising. As you mentioned it would be nice to have a feedback loop for regulation of the diameter. But I don't think that will take long from now. Would love to have such a machine, but the biggest problem is still the shredder

@Exstaz

4 ай бұрын

Can get pellets from add north.

@spedi6721

4 ай бұрын

@@Exstaz it's about recycling old prints, not just make new filament.

@clockworkvanhellsing372

4 ай бұрын

An esp32 cam would make a damn good sensor.

@spedi6721

4 ай бұрын

@@clockworkvanhellsing372 if you know how, then please contribute to the project

"only" 600 bucks, I'm happy you started the video with this disclaimer

Great content. I am just getting started in 3D printing as a hobby and will now save my waste for this future application. Thank you for sharing

Great video Stefan, i really enjoyed the entire thing. Have you ever messed around with Hybrids? Mixing PLA with another plastic? it would be cool to see you use this machine and make some neat filaments!

@CNCKitchen

4 ай бұрын

Haven't tried this out yet but this machine might struggle with such a project, because there isn't a lot of mixing happening in the barrel. Might go back to my 3DEVO for this.

@jeepthangjim

4 ай бұрын

​@CNCKitchen You would probably have to double or triple extrude it. Basically, extrude it, granulate the new filament, and then extrude it again. That may be enough to get it mixed together consistently, but if not, do it again. The problem is, that's an awful lot of work for something that may or may not work. Even if it does work, there may not be any benefit to it.

Amazing video Stefan and informative as always! Really liked the build and definitely I would like to C more vids like this. Appreciate your hard work and effort! Keep it up 💪!

I love this, I can't justify its cost because I don't print that much, but David's work is super promising for the future of at-home filament recycling. That said, maybe at-home recycling isn't the greatest need, if there were just community recycling centers that you could exchange your waste for recycled spools, that would be a great win.

Sadly, this is still well beyond affordable for me. You can get A LOT of filament for 650 + whatever a proper shredder costs + the energy cost of the recycling process. I estimate the amount of scrap I produce in a year is around 2kgs. That would mean DIY recycling would pay off for me in around...30-35 years. I still collect them, as we do have a recycling company that gives discounts for bringing in filament bits by the kilo - but I know that recycling it myself is never going to happen. And of course - PLA is a plant-based anyway, so it's not like throwing the remains away is doing away with irreplaceable resources. Producing PLA has an energy cost of around 16 kWh/kg. While I don't know how much you ended up printing on that first spool, let's say a full spool would be 6 hours, at, say, 60 watts, which is ballpark incandescent lightbulb, which would be 0.360kWh/kg (plus whatever energy the shredder needed). So recycling is definitely energy-saving.

600€. 20€ for 1kg = I can buy 30 Spools. Maybe this is interesting for people running a print farm professionally but I don’t think it’s reasonable for hobby users. Oh and you need a good shredder. Another 1000€?

This is amazing and finally within a much more reasonable budget. Id love to see this using petg from household recycling? That's been my dream for a few years to make things from all the disposable plastic waste we get everyday. Thank you for persisting with this project.🎉

A hall effect filament width sensor might be a great addition to that. I know klipper has support for it, but believe it just adjusts the extrusion multiplier, where it sounds like in this application it needs the temperature to be adjusted.

Would you get a better result if you grind it to even smaller particles by using e.g. a coffee grinder?

@CNCKitchen

4 ай бұрын

There is an optimal size and too small isn't necessarily better. You rather pelletize a first crude filament and then extrude these pellets again.

interesting, although as you mentioned one still needs a shredder. Also, is it necessary to dehumidify it with a vacuum chamber or is a oven sufficient?

@CNCKitchen

4 ай бұрын

An oven is totally sufficient.

That’s awesome man. I love this. The colors came out amazing

Really neat project with excellent results!

You lost me at “only 600 bucks”

@katzmikehd

Ай бұрын

Sameeee

@emenesu

Ай бұрын

Yeah get out of here with that price

@overengineer7691

Ай бұрын

Yeah im not really going to attempt recycling unless its less than $100

@lieutenantcoloneltanyavond8273

Ай бұрын

Would take me two years to make it back. And you also need a shredder, I doubt that would be cheap.

@hot_wheelz

Ай бұрын

No, none of this is cheap and realistically only those who print enough to have this make financial sense should even consider pursuing such options. That said, and the real point of all this, as more of the big players in the 3d printing community for whom in house recycling is viable, those businesses and maker spaces may then in time open that filament recycling service upto those in their local community which would then provide an opportunity for the rest of us to recycle our filament without needing to make an investment that is simply unrealistic for most people who are in the home / hobbyist 3d printing space.

Hello Stefan, thanks for yet another unbiased and inciteful look into a cool product. Personally i think the whole process was still cumbersome and the effort did not justify the results. All the shredding, drying , filtering and finally printing in a lot of work and time. Untill this process is easier, I would rather toss my failed prints in the government plastic recycling bin, and buy a spanking new fresh roll of filament.

Fantastic Stefan this type of content is why I subscribe.

That blue turned out amazing! Love the color mix you got out of it!

A good idea for maker spaces, but probably not worth it for home gamers.

I'm actually quite curious about the feasibility of incorporating a pulltrusion step, deliberately oversizing the filament from the extruder and effectively die-forming it to the proper size.

@Awrethien

4 ай бұрын

It would be a tricky balancing act as if you pull it when its warm enough to easily deform it its also going to get deformed by what ever your using to pull it through the die.

@aquilux-vids

4 ай бұрын

True to an extent, @@Awrethien , but if I recall correctly those PET bottle recycling setups were actually getting rather good dimensional accuracy just with the problem of air inclusions from curling the strip. Something about the pinch point caused by the nozzle and staying under a certain temperature combined to have the material deform mostly only at the nozzle unless I am mistaken. I was just wondering if that could make dialing in thickness more consistent and simple.

@chilloxik

4 ай бұрын

Hmmm, what are you saying is that you want to get 3mm PLA filament and then make it 1.75mm through pultrusion? 😵‍💫😵‍💫😵‍💫

@aquilux-vids

4 ай бұрын

Yeah, that's the thought @@chilloxik . Replacing a fiddly spindly dangly system that has a ton of variables and failure points with one system with much more solid control over the filament and much fewer variables. Something where the size of the initial extrusion really doesn't matter much because you're doing the sizing step separately with a physical tool rather than relying on flow+temp+air temp+air flow+viscosity+gravity+weak parts+filament position to size the filament.

@chilloxik

4 ай бұрын

@@aquilux-vids I think if you have a pellet 3d printer it can solve the issue and it was my initial idea for my project, but it went down the drain. I think when it comes to recycling and 3d printing pellets and not the filament are the future. But I was not able to test it myself, so will keep on dreaming.

I love this kind of tech, we'll designed and solves a problem. Definitely not priced for a home hobbiest, but for a small business or maker farm, it's totally reasonable

That is one amazing solution! The machine, how you have build it, looks very clean!

It`s good, but 600 euros? Just imagine how much plastic you can buy with this money!

"Only 600$"

I think this is a phenomenal idea. And, as you've pointed out, it's extremely well-put-together. I don't think filament recycling is on the radar of most 3D printer users. Well, perhaps on the radar but not a significant concern. I do, however, think that this could be excellent for makerspaces and the 3D printer power users.

Cool project, and it's now on my wishlist. Filament thickness sensor would definitely be something that should be considered. As soon as i find a good diy shredder (not. Manually. Driven) I'll give this a shot 👍

So around 700€ without the very expensive shredder..? Yeah, recycling is definitely not worth it.

@sligit

4 ай бұрын

Depends who you are. If you are involved with other people doing printing, or run something like a maker space this could totally be worthwhile.

@guyversama1

4 ай бұрын

@@sligit Honestly I doubt it. How many kg of filaments should you make to finally be profitable? Someone should do the math because I'm certainly not going to bother.

@sligit

4 ай бұрын

@@guyversama1 35kg. But I don't think the whole point is money saving.

@guyversama1

4 ай бұрын

@@sligit yeah no, I can buy more than 35Kg of filaments for the cost of this machine alone. Without even considering the shredder, the machine to remove moisture and the time and electricity needed for the work. 35kg of filaments is not even close to the profitable point.

@sligit

4 ай бұрын

@@guyversama1 you seem to think I'm trying to persuade you to buy one.

I'm sorry, I want to like this so much. but, I can't. You say "Inexpensive" SEVERAL times. And in the same breath say $600 (Plus the cost of a good shredder which is at least another few hundred minimum)... Expensive vs inexpensive is relative. Least expensive, Cheapest, Less expensive. Maybe, but not inexpensive. It took me quite a while to save up for a $200 printer, a few cheap mods, and some filament. I'll never afford this on what my government disability pays me a month. I got very hopeful over the word inexpensive... And you all can hate on me all you want for saying this and say what you like, but I won't bite that hook - in fact, I'll ignore it completely. Just stating my mind.

I like hearing that we're inching closer to viable, consumer accessible systems. That said, this is still rather expensive as far as a kit goes when it all adds up. And the fact that you probably do need a decent shredder, drying oven, and other tools in addition to this means the total cost is still far north of 1,000 currency units.

I'm glad the technology is going in the right direction. I look forward to when its not as expensive and there is a shredder system to go with it

Very cool design. I really look forward to seeing a mk3 version that has a built in sensor to detect the width of the filament coming through. Hopefully in time we can get more cost efficient filament crushers on the market too so that we can cost-effetely recycle old print projects.

Stefan, if ever lagging something with fibreglass/rock wool, then give it a quick spray with water. Stops dry fibres getting everywhere, helps keep its final shape, and will dry out once heated anyway.

This is great that this works so well. Thank you for sharing. I do think that we should be trying to recycle the plastics as so much ends up in the ocean or landfills. Also I think the mixing of the scrap filaments and prints could give some interesting patterns for custom filaments for printing.

This is very promising for the recycling side of the hobbyist. I personally do not do enough printing to generate enough waste yet, but I constantly keep my eye on this side.

This is just what I needed for my final year project. Didn't think to use screw to push plastic evenly to heating tube.

This was a great and informative video. Not sure I'm ready to jump into this but the price point for the DIY filament maker is really good and I can see it used widely by schools with maker spaces here in the US. I have a colleague here on ASU campus that runs a Precious Plastics business on campus that will love this video. I will share it. He already has all the rest of what's truly needed to make this work.